Structure for punching machine



June 22, 1 965 A. K. scHoTT 3,190,165

STRUCTURE FOR PUNCHING MACHINE I Original Filed March 6, 1961 2 Sheets-Sheet 1 1 F15. V I /J INVENTOR. Ari/7w K Sc/ro ff ATTORNEYS June 22, 1965 A. K. scHoTT 1 90,1

STRUCTURE FOR PUNCHING MACHINE Original Filed March 6, 1961 v 2 Sheets-Sheet 2' INVENTOR. Arf/rur A. Scbofz V aw/r 524 RNE YS United States Patent 3,190,165 STRUCTURE FOR PUNCHENG MAQHINE Arthur K. Schott, Kenmore, N.Y., assignor to'Houdaille Industries, Inc., Buffalo, N.Y., a corporation of Michigan Original application Mar. 6, 1961, Ser. No. 93,578. Divided and this application June 18, 1962, Ser. No. 203,373

a 2 Claims. (Cl. 83-467) This invention relates generally to punching machines, and more specifically to a novel punch and die supporting structure for angularly positioning the punch and die about the reciprocation axis.

This application is a division of my copending application of the same time, Serial No. 93,578, filed March 6,

More specifically, the cutting edges of punches and dies V are frequently adapted to provide a non-circular opening or operation on the workpiece, and the structure of this invention is especially adapted to enable the selective positioning of such non-circular tooling to. any angularposition about the reciprocation axis thereof.

Accordingly, it is an object of the present invention to provide. an improved punching machine.

Another object of the present invention is to provide tool and die supporting means which enable such tool and die means to be positioned at a selected angular position about a common axis. 1

A still further object of the present invention is to provide means by which the tool support and the die support may be locked at a selected angular position.

Many other advantages, features and additional ob-' jects of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets'of drawings in which a preferred structural embodiment incor- FIGURE 1 is a perspective view of a punching device provided in accordance with the principles of the present invention, the same being illustrated in conjunction with a suitable press, shown in broken lines, 'for operating the same;

FIGURE 2 is an enlarged top device of FIGURE 1; and I FIGURE 3 is an enlarged cross-sectional View taken along line l1IIII of FIGURE 2.

As shown on the drawings:

The principles of this invention are particularly useful when embodied in a punching device such as illustrated in FIGURE 1, generally indicated by the numeral 10. The punching device 10 includes a rigid frame having a lower arm 11 and an upper arm 12, each of which is respectively provided with an aperture 11a and 12a. The apertures 11a and 12a are thus defined by means which are vertically spaced from each other by a relatively small amount sufiicient to admit a workpiece.

Within the aperture 11a,'there is disposed an annular view of the punching 3,199,165 Patented June 22, 1965 ice member 13, and within the aperture 12a, there is disposed another annular member 14 concentric with the annular member 13. The annular members 13 and 14- are each respectively rotatable within the apertures in the lower and upper arms, and are respectively supported by such arms. To this end, each annular member 13 and 14 is respectively provided with a peripheral flange 15 and 16. Each of the annular members 13 and 14 is further respectively provided with-one or more internally directed grooves 17 and '18, which are receptive of keying of cooperating punch and die means having shaped or non-circular cross-section of a known type, Punch and die means of that type, are

not shown. known in the art, and in place thereof, I have illustrated herein a simulated punch or calibrating tool 19 which has a key 20 received in the groove 18 for effecting corotation between the tool 19 and the annular member 14. There is also illustrated a simulated die 21 having a key 22 received in the groove 17. This keying precludes relative rotation between each annular member and the tool received by it, thereby insuring corotation therebetween. The simulated punch 19 and the simulated die 21 have external configurations which engage the annular members 14 and 13, which external portions of their configurations are identical to the tooling for which this structure is provided.

The tool 19 has a grooved lower face which receives an upwardly extending structure on the tool 21, the same having an interengag ement which precludes relative rotation therebetween. By means of 'this type of simulated tooling, the annular members 13 and 14 can be. rotated to any angular positionabout their common axis and there locked, thus readying the frame for receiving cooperating punch and die means of shaped cross-section,

-the angular relation between such shaped'cross-section tively eifective locking means carried entirely by the an- 7 ular member 13 and removable therewith. This structure includes a bearing member or ball24 received in an aperture in the outside or outer surface of the annular member 13, and a threaded camming member 25 which acts on an inner point on the bearing member 24 to cam the bearing member 24 outwardly by a "preselected amount. As illustrated, it will be noted that the bearing member 24 is seated in a socket'26 which serves to provide or define a single predetermined angular position of the annular member 13. .When the bearing member 24 has been retracted, the annular member 13 may be rotated and the bearing member 24 squeezed into locking engagement with the lower arm '11 at any positionselected. .If desired, more than one bearing member 24 and camming member 25 may be employed,

A pointer 29 is'carried by the upper arm 12 'for cooperation with a protractor 30, shownin FIGURE 2, carried on the upper surface or flange 16 of the annular member 14. V

This feature is known in reference edge of the workpiece.

' and die means. 7 a

- combination: 7 V (a) a rigid frame constructed to be installed in and v V a When the device 1% has been provided with appropriate punch and die means, it may be installed on or'in a suitable press indicated in broken'lines at 31 in FIGURE 1, for operation thereby. The upper surface of the arm 11' serves asa workpiece-supporting surface or'table 33,

which ,is augmented by adjacent surface on the press 31 if desired. The workpiece (not shown) may be in-.

serted in the punching'device lfl'andthe pressr3l p erated, to perforate, the workpiece. However, it ispreferable that'theworkpiece be guided orhlocated with respect to the centerline ofthe punchand die means. The particular apparatus disclosed here is adapted to accuratelylocate a workpiece so that a prospective aperture is positioned properly with respect'to a preselected is provided for accurately positioning'or locating the workpiece With respect to a predetermined reference point,

" the reference pointin this instance being the concentric axes. of the rotatable annular members 13, 14,; which may be. referred'to as the-reciprocation axis of the'tool The gaging structure is described in detail in the parent application identified above; 7 However, a brief descrip The gaging structure includes a movable gage bar assembly 34 tion thereof is included'herein forconvenience,

To this ,end, structure which includes means 35. for. guiding the same'in slots 7 in the lower'arm 11 and for clamping the same'to the lower arm 11. The position of the gage arm assembly 34 is determined by. precisionrgagingmeans generally indicated at 36 which directly indicate the distance'fromv a reference surface'37 to the axis of the annular members 13 and 14. The gage bar assembly 34 further includes an adjustable stop assembly 38xwhich has a reference surface 39 engageable with a further edgerofthe workpiece; Precision gaging means generally indicated at 40 arealso'provided and carried on the gage; bar 337',

sembly 34- for accurately positioningor locatingithe adjustable stop'38 where it is locked.

1 During operation, the reciprocable punchisnormally biased in an upward direction .by structur'e generally, indicated at'41, details of which conform :to'

described in Patent 'No. 2,708,970.

Althoughzvarious minor modifications might be gested by those versed in the art, it should be understood that I wish to embody within the scope of-thepatent warranted hereon, all such embodiments as reasonably and p y'comewithin the scope of my contribution t 'thea'rt; V v. I

[I claim as my invention: i i Y '1 A structure for accurately an'gularlyQorientin-g a shaped tool with respect to removed from a press as'a unit and having-relatively fixedtupper and lower arms, said arms respectively having vertically fixed means defining at V spaced aligned apertures; I

p (b) a pair 'of vertically-spacedupwardly-open concen-=' tric annular members respectively supported by said arms in said spaced aligned apertures in vertically 'fixed positions and each rotatableftherein, and each a of said members having means respectivelycdeiining abore slidably receptive from above of separate cooperating tools comprising punch and die meansof ,non'circular cross-section, one of saidibore-de'fining I a means further enabling one of said tools to be vertically reciprocated with respect to the associated vertically fixed annular member;

7 1 (c) said rotatable annular members eachhaving radiala workpiece, comprising inpair, of:

the principles 1y inwardly extending keying'lstructure operative between each annular member and the tool supported by it to elfecfcorotation with such supported, tool while enabling the relative verticalmovementof the"v 'one of said tools and slidable reception of both of said tools; and V l (d) selectively effectivelOcking'meansfOr each of a said annular" members, said I locking, means being a respectively operative between said frame and said annular members to lock said annular members in 7 any selected rotational position'with respect to said 7 frame. 7 2. A structure for accurately angularly orienting a shaped tool withrespect to a workpiece,-comprising in a combination: 7

(a) a rigid frame constructed'to he installed brand 7 removed from a press as a :unit and having relativelyfixed upper and lower arms, said arms respectively having vertically fixed means defining a pair of spaced aligned apertures; a j

' (b) a pair of vertically-spacedupwardly-open concentric annular members respectively supported by said arms in said spaced aligned apertures Vin vertically fixed positions and each rotatabletherein, and each" of said members having means respectively defining a bore slidably receptive from above of separate cooperating tools comprising punch and diemeans of noncircul'ar cross-sectionQohe of said bore-defining means further enabling one of said tools to be vertically reciprocatedrwith.-respect to the associated" vertically fixed annular member; 7

l (c) said rotatable annular memberseach having radially inwardly extendingkeying structure operative between each annular member and the tool supported byit to effect corotation with suchsupported tool 7 while enabling'the relativeverticalmovement'of the slidable reception of both :of

one of said tools and said tools;

rotational position with respect to said frame; and i (e) gaging means. clampedjto'one of saidvrelatively fixed'iarms' of said frame at any selected position thereon,,and'operativeon two adjacent edges of the workpiece to guide the workpiece into \a prcdeten;

'mined'relation with respect to said rotatable annular members for the workpiece to be worked on by the'punchrand die meanssupported by said annular members. 1 7 v i a References Citedby the-Examiner TUHASZ, Primary Examiner,

CARL'W. TOMLIN, HUNTER c; BOURNE, .lR., f a 2 Examiners,

t (d) selectively efiective locking means for each of said j annular members, said locking means" being respecs.

' tively operative between said frame; and said annular members to lock said annular members in any selected UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent N 3, 190, 165 Dated June 22, 1965 A. K. Schott Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Col. 3, line 64 delete "from above";

Col. 4, line 26 delete "from above".

Signed and sealed this 15th day of August 1972.

(SEAL) Attest;

EDWARD M- FLETCHER, JR. ROBERT GOTTSCHALK Commissioner of Patents Attesting Officer DRM PO-IOSO 10-69) 

1. A STRUCTURE FOR ACCURATELY ANGULARLY ORIENTING A SHAPED TOOL WITH RESPECT TO A WORKPIECE, COMPRISING IN COMBINATION: (A) A RIGID FRAME CONSTRUCTED TO BE INSTALLED IN AND REMOVED FROM A PRESS AS A UNIT AND HAVING RELATIVELY FIXED UPPER AND LOWER ARMS, SAID ARMS RESPECTIVELY HAVING VERTICALLY FIXED MEANS DEFINING A PAIR OF SPACED ALIGNED APERTURES; (B) A PAIR OF VERTICALLY-SPACED UPWARDLY-OPEN CONCENTRIC ANNULAR MEMBERS RESPECTIVELY SUPPORTED BY SAID ARMS IN SAID SPACED ALIGNED APERTURES IN VERTICALLY FIXED POSITIONS AND EACH ROTATABLE THEREIN, AND EACH OF SAID MEMBERS HAVING MEANS RESPECTIVELY DEFINING A BORE SLIDABLY RECEPTIVE FROM ABOVE OF SEPARATE COOPERATING TOOLS COMPRISING PUNCH AND DIE MEANS OF NONCIRCULAR CROSS-SECTION, ONE OF SAID BORE-DEFINING MEANS FURTHER ENABLING ONE OF SAID TOOLS TO BE VERTICALLY RECIPROCATED WITH RESPECT TO THE ASSOCIATED VERTICALLY FIXED ANNULAR MEMBER; (C) SAID ROTATABLE ANNULAR MEMBERS EACH HAVING RADIALLY INWARDLY EXTENDING KEYING STRUCTURE OPERATIVE BETWEEN EACH ANNULAR MEMBER AND THE TOOL SUPPORTED BY IT TO EFFECT COROTATION WITH SUCH SUPPORTED TOOL WHILE ENABLING THE RELATIVE VERTICAL MOVEMENT OF THE ONE OF SAID TOOLS AND SLIDABLE RECEPTION OF BOTH OF SAID TOOLS; AND (D) SELECTIVELY EFFECTIVE LOCKING MEANS FOR EACH OF SAID ANNULAR MEMBERS, SAID LOCKING MEANS BEING RESPECTIVELY OPERATIVE BETWEEN SAID FRAME AND SAID ANNULAR MEMBERS TO LOCK SAID ANNULAR MEMBERS IN ANY SELECTED ROTATIONAL POSITION WITH RESPECT TO SAID FRAME. 